
\def\TEST#1{%
	\begin{tikzpicture}
	%\tracingmacros=2 \tracingcommands=2
		\begin{axis}[
			xmin=-5,xmax=5,ymin=-5,ymax=5,
			domain=-5:5, 
			mark size=10pt,
			#1,
		]
		\addplot+[samples=3,ultra thick] {x};	
		\addplot+[samples=2,ultra thick] {2*x};	
		\addplot+[only marks] coordinates {(2,-2) (4,-2)};	
		\end{axis}
	\end{tikzpicture}
}%
